How can I read input from keyboard with Swift 4?

Question

It's not in the Swift course. I tried this way, but... Gives this error. I don't know if it's only for Mac and IOS development.
https://code.sololearn.com/cdJ4o028L89e/?ref=app

Answer 1

var message = readLine()!
print(message)

https://www.sololearn.com/Discuss/1457999/?ref=app
https://www.sololearn.com/Discuss/2493372/?ref=app